Key points are not available for this paper at this time.
The phase diagram of a two-dimensional system consisting of colloids is investigated within the Kosterlitz-Thouless-Halperin-Nelson-Young theory of dislocation-mediated two-dimensional melting. We also present results for the interaction energy, the phonon spectrum, and the longitudinal and transverse sound velocity for different values of the screening length.
Peeters et al. (1987) studied this question.